Finding the Fourth Proportional to 2,553.86, 3,828.06 and 1,455.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.86 : 3,828.06 = 1,455.86 : x
2. Step 2: Convert to fraction form
   2,553.86/3,828.06 = 1,455.86/x
3. Step 3: Cross multiply
   2,553.86x = 3,828.06 × 1,455.86
4. Step 4: Simplify right side
   2,553.86x = 5,573,096.65
5. Step 5: Solve for x
   x = 5,573,096.65/2,553.86
6. Step 6: Final answer
   x = 2,182.23